person_info = []
print("=" * 20)
print('欢迎使用通讯录：')
print("1.添加联系人")
print("2.查看通讯录")
print("3.删除联系人")
print("4.修改联系人信息")
print("5.查找联系人")
print("6.退出")
print("=" * 20)
while True:
    per_dict = {}
    fun_num = input('请输入功能序号：')
    if fun_num== '1':
       per_name = input('请输入联系人的姓名: ')
       phone_num = input( '请输入联系人的手机号: ')
       per_email = input( '请输入联系人的邮箱: ' )
       per_address = input('请输入联系人的地址: ')

       if per_name.strip() == '' :
          print('请输入正确信息')
          continue
       else :
            per_dict.update({'姓名': per_name ,
                              '手机号': phone_num,
                              '电子邮箱': per_email,
                              '联系地址': per_address})
            person_info.append(per_dict) 
            print('保存成功')
    elif fun_num == '2':
       if len(person_info) == 0:
          print('通讯录无信息')
       for i in person_info:
           for title, info in i. items():
               print(title + ':' + info)
    elif fun_num == '3': 
        if len(person_info) != 0:
            del_name = input( '请输入要删除的联系人姓名: ')
        for i in person_info:
            if del_name in i.values():
                person_info. remove(i)
                print(person_info)
                print( '删除成功') 
            else:
                    print( '该联系人不在通讯录中')
        else:
            print('通讯录无信息')
    elif fun_num == '4':#修改
      if len(person_info) != 0:
        modi_info = input('请输 入要修改联系人姓名: ')
        for i in person_info:
            if modi_info in i.values():
                index_num = person_info. index(i)
                dict_cur_perinfo = person_info[index_num]
                for title, info in dict_cur_perinfo. items():
                     print(title + ':' + info)
                modi_name = input(' 请输入新的姓名: ')
                modi_phone = input( '请输入新的手机号: ' )
                modi_email = input( '请输入新的邮箱: ')
                modi_address = input( '请输入新的地址: ')
                dict_cur_perinfo .update(姓名= modi_name)
                dict_cur_perinfo.update(手机号= modi_phone )
                dict_cur_perinfo .update(电子邮箱= modi_email)
                dict_cur_perinfo. update (联系地址= modi_address)
                print(person_info)
        else:
            print( '通讯录无信息')
    elif fun_num == '5': 
        if len(person_info) != 0:
            query_name = input('请输入要查找的联系人姓名: ')
            for i in person_info:
                if query_name in i. values():
                    index_num = person_info.index(i)
                    for title,info in person_info[index_num]. items():
                         print(title + ':' + info)
                    break
            else:
                print('该联系人不在通讯录中')
        else:
            print( '通讯录无信息')
    elif fun_num == '6': 
             break